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Groups > linux.kernel > #1555943

[PATCHv7 09/11] arm64: Add cast for virt_to_pfn

From Laura Abbott <labbott@redhat.com>
Newsgroups linux.kernel
Subject [PATCHv7 09/11] arm64: Add cast for virt_to_pfn
Date 2017-01-10 22:40 +0100
Message-ID <sYcj8-6ul-53@gated-at.bofh.it> (permalink)
References <sYcj7-6ul-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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virt_to_pfn lacks a cast at the top level. Don't rely on __virt_to_phys
and explicitly cast to unsigned long.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
 arch/arm64/include/asm/memory.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index f80a8e4..cd6e3ee 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -209,7 +209,7 @@ static inline void *phys_to_virt(phys_addr_t x)
 #define __pa(x)			__virt_to_phys((unsigned long)(x))
 #define __va(x)			((void *)__phys_to_virt((phys_addr_t)(x)))
 #define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
-#define virt_to_pfn(x)      __phys_to_pfn(__virt_to_phys(x))
+#define virt_to_pfn(x)      __phys_to_pfn(__virt_to_phys((unsigned long)(x)))
 
 /*
  *  virt_to_page(k)	convert a _valid_ virtual address to struct page *
-- 
2.7.4

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Thread

[PATCHv7 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott <labbott@redhat.com> - 2017-01-10 22:40 +0100
  [PATCHv7 11/11] arm64: Add support for CONFIG_DEBUG_VIRTUAL Laura Abbott <labbott@redhat.com> - 2017-01-10 22:40 +0100
  [PATCHv7 06/11] mm/usercopy: Switch to using lm_alias Laura Abbott <labbott@redhat.com> - 2017-01-10 22:40 +0100
  [PATCHv7 09/11] arm64: Add cast for virt_to_pfn Laura Abbott <labbott@redhat.com> - 2017-01-10 22:40 +0100
  [PATCHv7 02/11] mm/cma: Cleanup highmem check Laura Abbott <labbott@redhat.com> - 2017-01-10 22:40 +0100
  [PATCHv7 08/11] arm64: Move some macros under #ifndef __ASSEMBLY__ Laura Abbott <labbott@redhat.com> - 2017-01-10 22:40 +0100
  [PATCHv7 10/11] arm64: Use __pa_symbol for kernel symbols Laura Abbott <labbott@redhat.com> - 2017-01-10 22:40 +0100
  Re: [PATCHv7 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Will Deacon <will.deacon@arm.com> - 2017-01-12 18:40 +0100

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